公开(公告)号：JP4521855B2

公开(公告)日：2010-08-11

申请号：JP2003135359

申请日：2003-05-14

Applicant: 荏原冷熱システム株式会社

Inventor： 純 村田 ,  利男 松原 ,  憲雄 荒井 ,  淳 青山

IPC: F25B15/00

CPC classification number: F25B15/008 ,  Y02A30/277 ,  Y02B30/62

Abstract: The present invention provides a high-efficiency absorption refrigerating machine which can recover heat from a heat source and can efficiently recover heat from an internal cycle. The absorption refrigerating machine includes an evaporator, an absorber (A), a condenser (C), a high-temperature regenerator (GH), a low-temperature regenerator (GL), a low-temperature solution heat exchanger (LX), and solution paths and refrigerant paths by which these units are connected. The absorption refrigerating machine further comprises two branch solution paths branched from a solution supply path through which a dilute solution is introduced from the absorption (A) to the high-temperature regenerator (GH). On one of the branch solution paths, there is disposed a drain heat exchanger (DX) operable to perform heat exchange between the dilute solution in the branch solution path and an exhaust heat source which has heated the high-temperature regenerator (GH). On the other of the branch solution paths, there are disposed a first high-temperature solution heat exchanger (HX1) and a second high-temperature solution heat exchanger (HX2) operable to perform heat exchange between the dilute solution in the branch solution path and a concentrated solution heated and concentrated in the high-temperature regenerator (GH). The absorption refrigerating machine is configured such that the dilute solution flows through the first high-temperature solution heat exchanger (HX1) and the second high-temperature solution heat exchanger (HX2) in this order, and the concentrated solution discharged from the high-temperature regenerator flows through the second high-temperature solution heat exchanger (HX2) and the first high-temperature solution heat exchanger (HX1) in this order.

公开(公告)号：JP4553741B2

公开(公告)日：2010-09-29

申请号：JP2005018650

申请日：2005-01-26

Applicant: 株式会社荏原製作所 ,  荏原冷熱システム株式会社

Inventor： 智芳 入江 ,  憲雄 荒井 ,  哲也 遠藤

IPC: F25B15/00

CPC classification number: Y02A30/277 ,  Y02B30/62

Abstract: PROBLEM TO BE SOLVED: To provide an absorption refrigerator having superior installability, while reducing split portions and welding parts of piping, being easily assembled, reducing its cost, and being miniaturized as a whole. SOLUTION: This absorption refrigerator 1 comprises a high-temperature regenerator 150, a low-temperature regenerator 10, a condenser 20, a low-pressure stage absorber 30, a low-pressure stage evaporator 40, a high-pressure stage absorber 60, a high-pressure stage evaporator 70 and the piping for connecting them, thus two-stage absorption/two-stage evaporation cycle is formed. The low-temperature regenerator 10, the condenser 20, the low-pressure stage absorber 30 and the low-pressure stage evaporator 40 are constituted as an integrated can barrel 50. The high-pressure stage absorber 60 and the high-pressure stage evaporator 70 are constituted as an integrated can barrel 80, and further auxiliary machines (high-temperature heat exchanger 100, low-temperature heat exchanger 110, solution pump 120 and refrigerant pump 130) are stored and installed in an auxiliary machine space 90 outside of the barrel body 80. COPYRIGHT: (C)2006,JPO&NCIPI